I found this quite amusing I want a go on that Theremin!

http://news.bbc.co.uk/1/hi/sci/tech/8164937.stm

The first thing, that looked like a music stand wasnt exactly amazing - it was just playing recorded sounds, when he blocked the laser, which could just be done using a photosensor.
Theremin's are fantastic, as are ondes martenots, it must be alot harder than it looks!

I kept "losing" the middle C on the piano when I first started playing (kept playing an octave too high or too low!!). I'd have no chance of remembering where it is on that thing!!!!

There's a Theremin in one of our local music shops, they are pretty amazing

Woahhh!!! That's seriously strange!!! The Theramin was quite cool when it sounded more like a musical instrument, but I didn't like the 'space' sounds!!

Thanks for posting!!